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3HXN

The structure of human carbonmonoxyhemoglobin complex to IHP at 2.0 angstrons resolution.

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C
(A, C)
Hemoglobin subunit alphapolymer14115150.42UniProt (P69905)
Pfam (PF00042)
Homo sapiens (human)Hemoglobin alpha chain, Alpha-globin
2B, D
(B, D)
Hemoglobin subunit betapolymer14615890.22UniProt (P68871)
Pfam (PF00042)
Homo sapiens (human)Hemoglobin beta chain, Beta-globin, LVV-hemorphin-7
3E, G, I, K
(A, B, C, D)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.54Chemie (HEM)
4F, H, J, L
(A, B, C, D)
CARBON MONOXIDEnon-polymer28.04Chemie (CMO)
5M
(D)
INOSITOL HEXAKISPHOSPHATEnon-polymer660.01Chemie (IHP)
6N, O, P, Q
(A, B, C, D)
waterwater18.0220Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains4
Total formula weight62081.1
Non-Polymers*Number of molecules9
Total formula weight3238.0
All*Total formula weight65319.1
*Water molecules are not included.

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PDB entries from 2025-06-11

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